/* ============================================================
   GST PRODUCTIONS — SHARED NAVIGATION (Wave 2.1)
   Design lead: kimi-k3. Benchmark-grade: Rockstar morph +
   Epic thumbnail mega-panel + Steam meta-rail discipline.
   One file, dropped identically on every public page.
   ============================================================ */
:root{
  --gst-bg:#000; --gst-bg-elev:#0b0b0b; --gst-ink:#fff;
  --gst-ink-2:rgba(255,255,255,.72); --gst-ink-3:rgba(255,255,255,.50);
  --gst-ink-4:rgba(255,255,255,.32);
  --gst-line:rgba(255,255,255,.07); --gst-line-2:rgba(255,255,255,.14);
  --gst-surge:linear-gradient(90deg,#4f7cff 0%,#38d4ff 50%,#8b5cf6 100%);
  --gst-surge-1:#4f7cff; --gst-surge-2:#38d4ff; --gst-surge-3:#8b5cf6;
  --gst-bar-h:64px; --gst-bar-h-scrolled:48px;
  --gst-font-display:"Space Grotesk",system-ui,sans-serif;
  --gst-font-ui:"Inter",system-ui,sans-serif;
  --gst-ease:cubic-bezier(.16,1,.3,1); --gst-ease-out:cubic-bezier(.22,1,.36,1);
  --gst-dur:320ms; --gst-dur-fast:200ms; --gst-dur-mega:280ms; --gst-dur-mobile:480ms;
  --gst-z-bar:1000; --gst-z-scrim:998; --gst-z-mega:999; --gst-z-mobile:1002;
}

.gst-nav{position:fixed;inset:0 0 auto 0;width:100%;z-index:var(--gst-z-bar);
  font-family:var(--gst-font-ui);color:var(--gst-ink)}
.gst-nav *{box-sizing:border-box}

/* ── THE BAR ── */
.gst-nav__bar{height:var(--gst-bar-h);background:transparent;
  border-bottom:1px solid transparent;
  transition:height var(--gst-dur) var(--gst-ease),background 280ms ease,border-color 280ms ease,box-shadow 280ms ease}
.gst-nav__inner{max-width:var(--gst-inner-max,1440px);height:100%;margin:0 auto;
  padding:0 32px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px}
.gst-nav.scrolled .gst-nav__bar,.gst-nav.mega-open .gst-nav__bar,.gst-nav--solid .gst-nav__bar{
  height:var(--gst-bar-h-scrolled);background:rgba(0,0,0,.88);
  -webkit-backdrop-filter:blur(20px) saturate(140%);backdrop-filter:blur(20px) saturate(140%);
  border-bottom:1px solid var(--gst-line);box-shadow:0 8px 32px rgba(0,0,0,.4)}

/* ── BRAND ── */
.gst-nav__brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content;text-decoration:none}
.gst-nav__mark{width:22px;height:22px;border-radius:6px;display:grid;place-items:center;
  background:var(--gst-surge);color:#000;font-family:var(--gst-font-display);font-weight:700;
  font-size:14px;line-height:1;transition:width var(--gst-dur) var(--gst-ease),height var(--gst-dur) var(--gst-ease)}
.gst-nav.scrolled .gst-nav__mark,.gst-nav--solid .gst-nav__mark{width:18px;height:18px;font-size:12px}
.gst-nav__wordmark{font-family:var(--gst-font-display);font-weight:700;font-size:13px;
  letter-spacing:.18em;color:#fff;white-space:nowrap;transition:font-size var(--gst-dur) var(--gst-ease)}
.gst-nav.scrolled .gst-nav__wordmark,.gst-nav--solid .gst-nav__wordmark{font-size:12px}

/* ── PRIMARY LINKS ── */
.gst-nav__primary{justify-self:center}
.gst-nav__list{display:flex;align-items:center;gap:clamp(20px,2vw,30px);list-style:none;margin:0;padding:0}
.gst-nav__link{position:relative;display:inline-flex;align-items:center;gap:5px;
  background:none;border:0;padding:6px 0;cursor:pointer;
  font-family:var(--gst-font-ui);font-size:12.5px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gst-ink-2);text-decoration:none;white-space:nowrap;
  transition:color 200ms ease,font-size var(--gst-dur) var(--gst-ease)}
.gst-nav.scrolled .gst-nav__link,.gst-nav--solid .gst-nav__link{font-size:12px}
.gst-nav__link::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--gst-surge);border-radius:2px;transition:right 260ms var(--gst-ease);opacity:.95}
.gst-nav__link:hover,.gst-nav__link:focus-visible{color:#fff}
.gst-nav__link:hover::after,.gst-nav__link:focus-visible::after,
.gst-nav__link[aria-expanded="true"]::after{right:0}
.gst-nav__link[data-nav-link].is-active{color:#fff}
.gst-nav__link[data-nav-link].is-active::after{right:0;opacity:1}
.gst-nav__chev{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-1px);transition:transform 260ms var(--gst-ease)}
.gst-nav__link[aria-expanded="true"] .gst-nav__chev{transform:rotate(225deg) translateY(-1px)}
.gst-nav__link:focus-visible{outline:2px solid var(--gst-surge-2);outline-offset:4px;border-radius:2px}

/* ── ASIDE ── */
.gst-nav__aside{display:flex;align-items:center;gap:16px}
.gst-nav__search{display:grid;place-items:center;width:34px;height:34px;border:0;background:none;
  color:var(--gst-ink-3);cursor:default}
.gst-nav__search[disabled]{opacity:.6}
.gst-nav__cta{display:inline-flex;align-items:center;justify-content:center;
  background:var(--gst-surge);background-size:200% 100%;background-position:0 0;color:#0b0b0b;
  font-family:var(--gst-font-ui);font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  padding:11px 22px;border-radius:999px;text-decoration:none;white-space:nowrap;
  box-shadow:0 0 0 1px rgba(255,255,255,.08) inset,0 4px 16px rgba(79,124,255,.25);
  transition:transform 200ms var(--gst-ease),box-shadow 200ms ease,background-position 400ms var(--gst-ease),padding var(--gst-dur) var(--gst-ease)}
.gst-nav.scrolled .gst-nav__cta,.gst-nav--solid .gst-nav__cta{padding:9px 20px}
.gst-nav__cta:hover{transform:translateY(-1px);background-position:100% 0;
  box-shadow:0 0 0 1px rgba(255,255,255,.15) inset,0 8px 24px rgba(56,212,255,.35)}
.gst-nav__cta:focus-visible{outline:2px solid #fff;outline-offset:3px}
.gst-nav__cta--block{width:100%;padding:16px 28px;font-size:13px}

/* ── HAMBURGER ── */
.gst-nav__burger{display:none;width:40px;height:40px;border:0;background:none;cursor:pointer;
  position:relative;padding:0}
.gst-nav__burger-line{position:absolute;left:12px;width:16px;height:1.5px;background:#fff;border-radius:1px;
  transition:transform 300ms var(--gst-ease),opacity 300ms var(--gst-ease)}
.gst-nav__burger-line:nth-child(1){top:14px}
.gst-nav__burger-line:nth-child(2){top:19.5px}
.gst-nav__burger-line:nth-child(3){top:25px}
.gst-nav__burger[aria-expanded="true"] .gst-nav__burger-line:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.gst-nav__burger[aria-expanded="true"] .gst-nav__burger-line:nth-child(2){opacity:0}
.gst-nav__burger[aria-expanded="true"] .gst-nav__burger-line:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ── MEGA PANEL ── */
.gst-nav__scrim{position:fixed;inset:0;z-index:var(--gst-z-scrim);background:rgba(0,0,0,.5);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;transition:opacity 200ms ease}
.gst-nav__scrim.is-visible{opacity:1}
.gst-mega{position:absolute;top:100%;left:0;width:100%;z-index:var(--gst-z-mega);
  background:var(--gst-bg-elev);-webkit-backdrop-filter:blur(24px) saturate(140%);backdrop-filter:blur(24px) saturate(140%);
  border-top:1px solid var(--gst-line);border-bottom:1px solid var(--gst-line);
  opacity:0;transform:translateY(-12px);pointer-events:none;
  transition:opacity var(--gst-dur-mega) var(--gst-ease),transform var(--gst-dur-mega) var(--gst-ease)}
.gst-mega.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.gst-mega__inner{max-width:1280px;margin:0 auto;padding:26px 32px 32px}
.gst-mega__head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px}
.gst-mega__eyebrow{font-family:var(--gst-font-ui);font-size:11px;font-weight:700;letter-spacing:.18em;
  text-transform:uppercase;background:var(--gst-surge);-webkit-background-clip:text;background-clip:text;color:transparent}
.gst-mega__sub{font-size:12px;color:var(--gst-ink-3);letter-spacing:.02em}
.gst-mega__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;margin:0;padding:0}
.gst-game{position:relative;display:block;text-decoration:none;color:#fff;
  border-radius:12px;padding:0;transition:transform 260ms var(--gst-ease)}
.gst-game:hover{transform:translateY(-3px)}
.gst-game__art{position:relative;aspect-ratio:296/185;border-radius:10px;overflow:hidden;background:#111;
  box-shadow:inset 0 0 0 1px var(--gst-line)}
.gst-game__art img{width:100%;height:100%;object-fit:cover;transition:transform 500ms var(--gst-ease),filter 300ms ease;filter:saturate(.92) brightness(.92)}
.gst-game:hover .gst-game__art img{transform:scale(1.05);filter:saturate(1.05) brightness(1)}
.gst-game__art::after{content:"";position:absolute;inset:0;border-radius:10px;
  box-shadow:inset 0 0 0 1px transparent;transition:box-shadow 260ms ease;pointer-events:none}
.gst-game:hover .gst-game__art::after{box-shadow:inset 0 0 0 1px var(--gst-surge-2)}
.gst-game__phase{position:absolute;top:10px;left:10px;font-family:var(--gst-font-ui);font-weight:600;
  font-size:9.5px;line-height:1;letter-spacing:.16em;text-transform:uppercase;padding:5px 8px;border-radius:4px;
  background:rgba(0,0,0,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;border:1px solid var(--gst-line-2)}
.gst-game__phase[data-phase="3"]{border-color:var(--gst-surge-2);color:var(--gst-surge-2)}
.gst-game__phase[data-phase="2"]{border-color:rgba(79,124,255,.5);color:var(--gst-surge-1)}
.gst-game__body{padding:13px 4px 0}
.gst-game__title{margin:0;font-family:var(--gst-font-display);font-weight:700;font-size:15px;letter-spacing:-.01em;color:#fff}
.gst-game__meta{margin:5px 0 0;font-size:11px;letter-spacing:.03em;color:var(--gst-ink-3);display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.gst-game__pct{color:var(--gst-surge-2);font-weight:600}
.gst-game__arrow{position:absolute;top:0;right:2px;color:var(--gst-ink-4);font-size:15px;
  opacity:0;transform:translateX(-4px);transition:opacity 240ms ease,transform 240ms var(--gst-ease)}
.gst-game:hover .gst-game__arrow{opacity:1;transform:translateX(0);color:var(--gst-surge-2)}
.gst-game--cta{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:8px;
  aspect-ratio:296/280;border-radius:12px;padding:22px;background:
  linear-gradient(135deg,rgba(79,124,255,.10),rgba(139,92,246,.10));
  box-shadow:inset 0 0 0 1px var(--gst-line-2)}
.gst-game--cta:hover{box-shadow:inset 0 0 0 1px var(--gst-surge-2);transform:translateY(-3px)}
.gst-game__cta-eyebrow{font-size:10.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--gst-ink-3)}
.gst-game__cta-label{font-family:var(--gst-font-display);font-weight:700;font-size:19px;color:#fff}
.gst-game__cta-arrow{font-size:20px;background:var(--gst-surge);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ── MOBILE OVERLAY ── */
.gst-mobile{position:fixed;inset:0;z-index:var(--gst-z-mobile);background:#000;
  display:flex;flex-direction:column;padding:20px 24px 32px;opacity:0;pointer-events:none;
  transition:opacity var(--gst-dur-mobile) var(--gst-ease)}
.gst-mobile.is-open{opacity:1;pointer-events:auto}
.gst-mobile__head{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:24px}
.gst-mobile__close{display:grid;place-items:center;width:44px;height:44px;border:0;background:none;color:#fff;cursor:pointer}
.gst-mobile__nav{flex:1;overflow-y:auto}
.gst-mobile__list{list-style:none;margin:0;padding:0}
.gst-mobile__item{opacity:0;transform:translateY(16px);transition:opacity 400ms var(--gst-ease),transform 400ms var(--gst-ease);transition-delay:calc(var(--i,0) * 60ms)}
.gst-mobile.is-open .gst-mobile__item.is-revealed{opacity:1;transform:translateY(0)}
.gst-mobile__link{display:flex;align-items:center;justify-content:space-between;width:100%;
  padding:14px 0;border:0;border-bottom:1px solid var(--gst-line);background:none;cursor:pointer;
  font-family:var(--gst-font-display);font-weight:700;font-size:28px;letter-spacing:-.02em;color:#fff;text-decoration:none;text-align:left}
.gst-mobile__chev{width:10px;height:10px;border-right:2px solid var(--gst-ink-3);border-bottom:2px solid var(--gst-ink-3);transform:rotate(45deg);transition:transform 260ms var(--gst-ease)}
.gst-mobile__link--expand[aria-expanded="true"] .gst-mobile__chev{transform:rotate(-135deg)}
.gst-mobile__games{list-style:none;margin:4px 0 8px;padding:0;overflow:hidden}
.gst-mobile__games li{padding:0}
.gst-mobile__games a{display:flex;flex-direction:column;gap:2px;padding:10px 0 10px 16px;border-left:2px solid var(--gst-line-2);text-decoration:none}
.gst-mobile__games a span{font-family:var(--gst-font-display);font-weight:600;font-size:16px;color:#fff}
.gst-mobile__games a em{font-style:normal;font-family:var(--gst-font-ui);font-size:12px;color:var(--gst-ink-3);letter-spacing:.02em}
.gst-mobile__foot{padding-top:22px}

@media (max-width:1023px){
  .gst-nav__primary{display:none}
  .gst-nav__search{display:none}
  .gst-nav__burger{display:block}
  .gst-nav__inner{grid-template-columns:auto 1fr auto;gap:12px}
  .gst-mega{display:none}
  .gst-nav__cta{display:none}
}
@media (min-width:1024px){ .gst-mobile{display:none} }
@media (max-width:768px){ .gst-nav__inner{padding:0 20px} }

@media (prefers-reduced-motion:reduce){
  .gst-nav *,.gst-mega,.gst-mobile,.gst-mobile__item{transition:none!important;animation:none!important}
  .gst-mega.is-open{transform:none}
}

/* nav-above-canvas */
.gst-nav{z-index:1000 !important;}
#gl-canvas,canvas[data-sim],.gst-sim-canvas{pointer-events:none !important;}